Register a Foreign LLC or Corporation in Wyoming: $150 Certificate of Authority and the $5,000 Penalty for Skipping It
If your LLC or corporation was formed in another state but does business in Wyoming, you need a certificate of authority from the Wyoming Secretary of State before you start. For most for-profit entities, the filing fee is $150. Skipping it can cost you a $5,000 penalty on top of back fees, 18% interest, audit expenses, and attorney fees. This guide covers who needs to register, what it costs, how to file by mail, and what follows after you qualify.
Informational only. This guide is not legal or tax advice. Registration, tax, and licensing questions depend on your specific facts. Talk with a Wyoming-licensed attorney or a CPA before you file, especially if you have employees, operate in several states, or have a complex ownership structure.
Wyoming Foreign LLC Registration: Who Must File
A foreign entity is one formed under the laws of another state or country. Before it transacts business in Wyoming, it must register with the Wyoming Secretary of State, Business Division. Wyoming's statute does not leave you to guess at everything, though. Under W.S. 17-16-1501(b), some activities do not count as transacting business, including:
- An isolated transaction completed within 30 days
- Maintaining bank accounts
- Holding internal meetings
- Soliciting orders that are accepted outside Wyoming
That list is not complete, and it is not a safe harbor for everything. If you have a Wyoming office, employees, inventory in the state, a job site, or repeat Wyoming customers, assume you are transacting business and register.
Fees for a Foreign Certificate of Authority
| Entity type | Certificate of authority fee |
|---|---|
| Foreign limited liability company (LLC) | $150 |
| Foreign profit corporation | $150 |
| Foreign statutory trust | $150 |
| Foreign limited partnership | $150 |
| Foreign nonprofit | $50 |
The $150 LLC fee is set by W.S. 17-29-210(a)(v). The $50 foreign nonprofit fee comes from the Secretary of State fee schedule effective July 1, 2026. Fees change, so confirm the current schedule on the Wyoming Secretary of State website before you mail your payment.
How to File: By Mail, Not Online
A Wyoming LLC can be formed online through WyoBiz. A foreign entity's certificate of authority is different: the Secretary of State's FAQ confirms that foreign entities file by mail. Start with a name check on the WyoBiz business search. Your name must be available and distinguishable on that search. If another entity already uses your name, resolve that before you file.
Your package will include the certificate of authority application and the signed consent from your Wyoming registered agent. If you are a foreign series LLC, the certificate must say so. The Secretary of State issues no certificate of authority to a foreign DAO under W.S. 17-31-116.
Mailed filings are processed in the order received and can take up to 15 business days. Build that window into your launch date, because you should not start Wyoming business while you wait.
Expedited Review
Expedited service is priority review for a single document, charged in addition to the standard filing fee. The Secretary of State's expedite sheet (revised June 2026) lists these options:
| Service | Added fee per document | Filing must be received by |
|---|---|---|
| Same business day | $1,400 | 12:00 noon Mountain Time |
| Next business day | $700 | 5:00 p.m. Mountain Time |
A mailed certificate of authority is not on the excluded list, so it can be expedited. The fee buys priority review, not a guarantee of acceptance. If the filing is rejected, you still need to fix the problem and resubmit.
Registered Agent Requirements
Every entity filed in Wyoming must continuously maintain a registered agent to accept service of process. The agent can be a Wyoming resident individual or a domestic or foreign business entity authorized to transact business in Wyoming. The agent must have a physical street address in Wyoming, including any suite number. A drop box does not qualify. A PO box is accepted only in addition to a physical address. The agent signs a Consent to Appointment certifying compliance with W.S. 17-28-101 through 17-28-111.
Commercial registered agents pay the Secretary of State a $50 annual registration. Appointing a new registered agent and office costs $5. If you use an agent service, budget for the agent's own annual fee next to the $60 annual report.
The $5,000 Penalty for Transacting Business Without Authority
The penalty is the reason to file before your first Wyoming sale or contract. Under W.S. 17-16-1502(d), which applies to LLCs through W.S. 17-29-210(c), an entity that transacts business in Wyoming without authority can owe:
- All fees and license taxes that were owed
- 18% interest
- A $5,000 penalty
- Audit expenses
- Attorney fees
Corporations face one more consequence. Under W.S. 17-16-1502(a), a foreign corporation that has not obtained authority cannot sue in Wyoming courts. If a Wyoming customer stops paying, you cannot take them to court until you are authorized. Registering late does not erase the back fees and interest, so the cheapest path is always to file first.
After You Register: Annual Report and Ongoing Duties
Registration does not end your Wyoming obligations. The annual report license tax continues after you qualify. It is a $60 minimum, or two-tenths of one mill on the dollar ($.0002) of all assets located and employed in Wyoming, whichever is greater. An entity with $300,000 or less in Wyoming assets pays $60. An entity with $1,210,000 in Wyoming assets pays $242.
The annual report is due on the first day of the anniversary month every year. You may file it up to 120 days before the due date. If it is not paid within 60 days of the due date, the entity is subject to administrative dissolution. Confirm which anniversary month applies to your foreign registration with the Secretary of State.
Wyoming levies no corporate income tax, no personal income tax, and no franchise tax. The annual report license tax is the only recurring state entity charge. Your Wyoming registration does not change your home-state filings. Keep filing there.
Sales Tax, City Licenses, and Other Requirements
Sales and Use Tax
Wyoming's state sales tax rate is 4%. County option taxes and resort district taxes can add to it, and Wyoming has no city sales tax. County rates change quarterly, so use the Department of Revenue rate chart for the quarter you are charging tax in. Taxable items include meals and prepared food, lodging, admissions, telecom, utilities, alcohol, repair and alteration of personal property, and oil and gas well-site services. Intrastate freight is exempt, as is food for home consumption, including most baked goods. Contractors pay tax on the materials they install.
If you make taxable sales in Wyoming, you need a sales and use tax license from the Department of Revenue. The application carries a $60 non-refundable fee. Remote sellers face a $100,000 threshold based on sales alone. Wyoming issues no resale certificate, so a buyer gives you a signed certificate instead. Apply through the Department of Revenue registration page.
City Licenses and Permits
Wyoming has no general statewide business license. Registering with the Secretary of State does not authorize your specific activity. You may need a license or permit from the city clerk in the city where you operate. Only cities and towns issue business licenses. Counties handle land use, building, septic, and liquor matters.
Wyoming has no state contractor, plumber, or HVAC license. The state licenses electrical trades, and contractors are licensed city by city. Gillette's contractor license application, dated June 25, 2026, asks for Secretary of State good standing, including from out-of-state contractors. Check with each city where you plan to work. Retail liquor licenses are population-quota licenses issued by cities, towns, and counties, so check with the local issuing office before you sell alcohol.
Workers' Compensation
Wyoming's workers' compensation is a monopolistic state fund run by the Department of Workforce Services. Coverage is compulsory only in listed extrahazardous industries. Sole proprietors, partners, officers, and LLC members are excluded unless they elect coverage. Check with the Department of Workforce Services whether your industry is listed and whether any Wyoming workers need coverage.
Common Mistakes to Avoid
- Filing the certificate of authority online. Foreign registrations go by mail.
- Using a drop box or a PO box as your only registered agent address.
- Waiting until your first Wyoming contract to file.
- Assuming the Wyoming filing replaces any home-state filing. It does not.
- Forgetting that a Wyoming registration does not cover a Wyoming LLC you formed and operate from another state. That is a separate filing with the other state.
Registration Checklist
- Confirm whether your Wyoming activity counts as transacting business under W.S. 17-16-1501(b).
- Check your name on the WyoBiz business search.
- Appoint a Wyoming registered agent with a physical street address.
- Prepare the certificate of authority application, including the series LLC statement if it applies.
- Mail the filing with the $150 fee for an LLC or corporation, or $50 for a nonprofit, and add an expedite fee only if you need priority review.
- Calendar the annual report due date and confirm your anniversary month with the Secretary of State.
- Register for a sales and use tax license and check city licenses before your first Wyoming sale.
Official Resources
- Wyoming Secretary of State: forms, fee schedules, and FAQs
- WyoBiz business search: name availability
- Wyoming Department of Revenue, Excise Tax Division: sales and use tax information and rate charts
- Wyoming SBDC Network: free small business advising
- SBA Wyoming district office: federal small business resources
This guide is informational only and is not legal or tax advice. Confirm current fees and deadlines with the named agencies, and consult a qualified attorney or CPA before you register.